Which of the following is/are the reasons for the cause of crevice corrosion?(a) The stagnant solution in the holes and gasket surfaces(b) The stagnant solution in the lap joints and surface deposits(c) Dissimilar metal contact(d) The stagnant solution in the holes, gasket surfaces, lap joints, and surface depositsI have been asked this question by my school principal while I was bunking the class.This intriguing question originated from Eight Forms in division Eight Forms of Corrosion of Corrosion Engineering

Which of the following is/are the reasons for the cause of crevice cor

1.	Which of the following is/are the reasons for the cause of crevice corrosion?(a) The stagnant solution in the holes and gasket surfaces(b) The stagnant solution in the lap joints and surface deposits(c) Dissimilar metal contact(d) The stagnant solution in the holes, gasket surfaces, lap joints, and surface depositsI have been asked this question by my school principal while I was bunking the class.This intriguing question originated from Eight Forms in division Eight Forms of Corrosion of Corrosion Engineering
Answer» The correct choice is (d) The stagnant solution in the holes, GASKET SURFACES, lap joints, and SURFACE deposits Explanation: Crevice corrosion is a TYPE of corrosion in which dissolution of metal is due to the presence of stagnant solution in the small gaps (crevice) such as holes, gasket surfaces, lap joints, and surface deposits, ETC.

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